I can too but when Im low Im not sure how low, like when the propane for grill is getting low and your not sure whether its burgers and dogs low or can I get 1 more batch of ribs before running out low( I use charcoal only BTW). mine has a baffled bladder so i cant tell by the sloshing noise anymore. I can guarantee the "jones'" will buy it if its marketed right. sounds like a good idea to me. go for it